Process and apparatus for the manufacture of cardboard boxes for packing of eggs, fruit, and the like



March- 9, 1943.

P E. v. JACOBSEN 2,313,200

PROCESS AND APPARAIUS FOR THE MANUFACTURE; OF CARDBOARD PACKING 0F EGGS, FRUIT, AND THE LIKE Filed April 23, 1940 BOXES FOR 5 Sheets-Sheet 1 INVENTOR. PETER EMIL V/LHELMJACOb SEN ATTORNEYS.

March 9, 1943. P, E. v. JACOBSEN 2,313,200

PROCESS AND APPARATUS FOR THE MANUFACTURE OF CARDBOARD BOXES FOR PACKING OF EGGS, FRUIT, AND THE LIKE I Filed April 23, 1940 i 5 Sheets-Sheet 2 I I l I 9 139220 3/91- INVENTOR PETER E5411. V/LHELM JACOBSEN ATTORNEYS $313,200 BOARD March 9, 1943. E. 'v. JAYCOBSEN P. PROCESS AND APPARATUS FOR THE MANUFACTURE OF CARD BOXES FOR PACKING 0F EGGS, FRUIT, AND THE LIKE V Filed April 23, 194Q 5 Sheets-Sheet 3 2519 Q ZI E 5' o o "NVENTOR. PETER EM/L ViLHELM JACOBSE N BY a ATTORNEYS.

Mafch 1943. P. E. v. JACOBSEN 2,313,290

PROCESS AND ABPARATUS FOR THE MANUFACTURE OF CARDBOARD BOXES FQR'PACKING OF EGGS, FRUIT, AND THE LIKE I F Filed April 23, 1940 5 Shee s-Sheet 4 mi .J L

19 19 18' 30 I0 12' 4 IL I I /7 ,1 I A LL I 22' 47 i r I \ll b L i 3.1-, m 2 "tl l::w v 6 v D 3 I w iNVENTOR. P2 TER EM! 1. VILHELM JA con SEN ATTORNEY. 9.

March 9, 1943. v P. E. v. JAcoBsEN 2,313,200

PROCESS AND APPARATUS FOR THE MANUFACTURE OF CARDBOARD BOXES FOR PACKING 0F EGGS, FRUIT, AND THE LIKE Filed April 25, 1940 5 Sheets-Sheet 5 INVENTOR. PETER EMIL VZLHELMJACOBSEN ATTORNEYS.

Patented Mar. 9, 1943 PROCESS AND APPARATUS FOR THE MANU- FACTURE OF CARDBOARD BOXES FOR PACKING F EGGS, FRUIT, AND THE LIKE Peter Emil Vilhelm Jacobson, Copenhagen, Denmark; vestedin the Alien Property Custodian Application April 23, 1940, Serial No. 331,131 In Denmark April 18, 1939 1 Claim.

It is known to manufacture egg boxes by means of machines, in such a manner that the boxes, immediately after the manufacture, can be used for packing of eggs. It is similarly known to manufacture the parts belonging to the folded egg box is effected.

from the cardboard strips.

strips are again wound into coils.

egg boxes separately on machines suited for the The apparatus that subsequently has to uncoil purpose, and then to ship the individual parts, the coils and to assemble the egg boxes can be either separated or more or less folded together, manufactured rather simply, because the incito the place at which the eggs are to be packed, sions in the cardboard strips have already been and where the final assembling or unfolding of made. transverse walls from the cardboard strips is The present invention relates to a process for effected by shearing, in such a manner that no the manufacture of such egg boxes which are refuse is produced. composed of a number of longitudinal and trans- The invention is illustrated on the drawings, verse walls, the said longitudinal walls being in Whichv folded together and pushed into closed incisions Figs. 1 and 2 show fractional parts of cardin the transverse walls, after which they are un board strips forming, respectively, the transverse folded into V-shape, and the process consists in walls and longitudinal walls of the finished eg that the longitudinal and transverse walls of the box, egg boxes are first stamped out from strips of Figs. 3 and 4 show two fragments of a concardboard in the shape they are to have in their struction of the apparatusfor assembling the egg finished state, but in such a manner that they box, in plan view, are mutually interconnected, after which the Figs. 5 and 6 show two fragments of the same strips are coiled and transported to the place at apparatus, in side elevation, which the cardboards are to be assembled and, 3- 7 a detail from a larger e, filled with eggs. The assembling is then effected the so-called assembling b here by means of a machine or an apparatus Fig- 8 the egg in end elevation, immewhich unrolls the longitudinal and transverse diately afte e longitudinal Walls e been walls from the said coils, and assembles th brought into position, relatively to the transverse cardboards by bringing the walls into the proper Walls, but before they are u ld d, a d mutual positions, and finally severs the walls F g. 9 the egg bOX in the State Of being ted out from the assembling box. By this special process the following advanon a hOIiZOHtBJ shaft Figs. 5 and SiX 0 tages are attained: The stamping out of the 7, walls can be efiected on an automatically opersiyhung, the first C0118 a, and 19 consisting ating machine which receives a cardboard strip of stamped transverse walls for the egg box, and from a coil, stamps the same in such a. manner the last two coils 9 and- [0 consisting of stamped that all material that does not enter into the longitudinal walls for thesame. finished egg box will be removed, and finally the strips forming the transverse walls, Fig. 1, have In the case 40 incisions I3, but the individual transverse walls of the longitudinal walls of the egg box consistare interconnected along imaginary dotted lines ing, as mentioned above, of V-shaped troughs l4 which as described in the following are shearedthe two parts of which are interconnected along off, at the same time as the individual egg boxes 2. line of bend, the said bending may also be are assembled. efiected by the stamping machine which pro- The cardboard strips forming the longitudinal duces alongitudinal weakening line at the centre walls, Fig. 2, have similarly incisions l5, and of the strip, and then folds the two halves of the they have also a bend l6 along their centre line, strip together, after which the machine produces which. bend, however, is straightened out aga the incisions in the folded walls, then unfolds as during the stamping out of the openings l5 the strip, and again winds the same into the tll'the strip has been folded together about the line shape of a coil. This gives the cheapest possible it. The individual longitudinal walls are sepatransport of the parts of the egg boxes, as only rated from one another by imaginary dotted the quantity of material that enters into the finlines ll along which the strips are sheared ofi, ished egg boxes is transported, and the individusimultaneously with. the assembling of the egg a1 parts take up the smallest possible space, and

are in a state that is especially adapted for transport, when they are wound firmly in the form of a coil. Further, the coiled strips are an especially convenient shape of materials to be supplied to the cutting and assembling apparatuses.

The separation of the longitudinal and II, and I2 of cardboard strips are The cardboard box.

In the construction shown, an egg box consists of four transverse walls taken from each of the four coils l, 8, 9, and I0, and two longitudinal walls taken from each of the coils l l and I2.

'The cardboard strips from the coils i, 6, 9, and lil are marked with the numerals l, 8', 9', and H1, respectively. They are turned edgewise and are each directed into a vertical doublewalled stationary guide rail i8, in such a manner that they are standing side by side, at a mu tual distance corresponding to incisions in the longitudinal walls, which in the present case are situated at a mutual distance from one another corresponding to the diameter of a 'hens egg. The strips project on the other side of the guide rails is, as shown in Fig. 3, for a-distance corresponding exactly to the length of a transverse wall.

In Figs. 3 and the strips from the coils i l and H! are marked with the numerals H and I2. They are both folded together about the line of bend is, at the sanietime as they are each moved along a guide roll is, and they are then each directed into a corresponding vertical, doublewalled' stationary guide rail 2'0,

By the folding about the line [5, the cardboard strip is preferably bent in a direction opposite to the one inwhich it was bent in the stamping machine, as experience has shown that in this case it acquires a greater resiliency for opening or unfolding itself, when it is inserted into the finished egg box.

Below the guide rails It], a carriage 2i is provided which is adapted to slide forward and back along stationary rails 22. The carriage 2| has a downward directed pin 23-which by means of a link bar 24 is connected to a lever 25 which is pivoted about a vertical pin 26. On a vertical shaft 2'! in the machine, 3, lug 28 is provided which for each revolution" of the shaft 27 actuates the lever 25, and thus moves the carriage 2| upward in Fig. 3 for a distance corresponding to the length of a transverse wall. When the lug 28 has moved past the lever 25, a spring not shown in the drawings returns the carriage 2! to the position shown in Fig". 3. The carriage 2| supports four spring-actuated pawls 23' which are in engagement with the incisions in the corr sponding cardboard strip 1', 8", 9, and iii, and on the stationary guide rails l8 other springactuated pawls 3t are provided, which similarly are in engagement with the incisions in the corresponding strips 1', 8, 9, and E9. When the carriage 2! is moved upwards in Fig. 3, the pawls 29 will slide over the incisions in the cardboard strips which are held in position by the pawls 3 i|, and when the carriage 2| moves downwards, the pawls' 2'9 take the cardboard strips along, and move them forward a distance corresponding to the length of atransverse wall.

In the same manner a movable carriage 3! is ing backward. The forward motion of the strips 1 l and I2 is thus effected according to the same principle as in the case of the strips '1', 8', 9' and. Hi.

At the end of the guide rails [8, a matrix 38 is provided with openings through which the strips 1', 8, 9', and l 5' are passing. Alongside the matrix, a cutter 39 is disposed which has four blades between which the strips are passing. By means of a link member 49, the cutter 39 is connected to a three-armed lever ll which is pivoted about a stationary pin 42.

In the same manner a matrix 53 with two openings for the strips II' and I2 is disposed at the end of the guide rail 20, and alongside the said matrix a cutter 54 is provided having two openings for the strips. The cutter 44 is connected, by means of a link bar 45, to one arm 36 of the lever A l, the third arm 4'1 of which is actuated by disposed below the guide rails 26 which carriage can slide along stationary rails 32. The carriage 3 l is fitted on the bottom side with a downward directed pin 33 which bv means of a link bar 34 is connected to a lever 35 which is pivoted about the pin 26, and is actuated by the lug 28 on the shaft 21, in the same manner as the lever 25 was actuated. The carriage 33 has two spring-actuatedpawls 36 serving to convey the strips I! and I2 forward, owing to the action of a spring that is not shown on the drawing, while another set of pawls 31 on the guide rails 20 serve to prevent the strips H" and I 2' from slidforward" a distance corresponding to the lengthof a transverse wall, after which the strips H and i2 are-moved forward a distance corresponding to the length of a longitudinal wall, during which motion they are directed into incisions in the transverse walls, and finally the transverse as well as the longitudinal walls are severedfrom the strips concerned by means of the cutters 39 and 44.

Between the cutters 39 and i l, an assembling box is disposed which consists of a stationary table 48 fitted with guide rails 49 for the transverse walls and 553 for the longitudinal walls, in such a manner that all the walls are guided during their forward passage over the table 48. Between the two rows of guide rails 50 for the longitudinal Walls, a plate 5| is provided on the table which plate supports relatively low guide rails 52 for the transverse walls, and this plate is supported by a vertical rod 53 which is adapt d to slide up and-down. As shown in Fig. '7, the plate 5| serves to lift the egg box from the assembling box, after the longitudinal walls have been moved into position, relatively to the transverse walls. In stationary bearings 54 and 55, Fig. 3, a horizontal shaft 56 is disposed which has an arm 51 by means of which it can lift the rod 53, and. to the other end of the shaft an arm 58 is attached which swings sideways owing to the action of a lug 59 on the shaft 21, whereby the rod 53 is lifted, and again drops down, when the lug 59 has released the arm 53.

When the longitudinal walls H and I2 have been moved into position relatively to the transverse walls 1', 8, 9', and Hi, they will occupy the position shown in Fig. 6. Then the rod 53 is' raised to the position shown in Fig. '7, and by this motion also the transverse walls that rest in the guide rails 52 on the plate 5 are raised, while the longitudinal walls for a time are held back, and they are not raised until the bottoms of their vertical incisions are resting on the lower edge of the incisions IS in the transverse walls, Fig. 8. Only in this position which is shown in Fig. 9, they are able to unfold themselves, and with their slit-like incisions they will then engage the transverse walls securely. In the bottoms of the incisions I3, Fig. 8, a notch 60 is provided which serves to maintain the longitudinal wall in its vertical position, immediately before it unfolds itself, in such a manner that it cannot come into a skew position, relatively to the incisions l3.

After the finished egg box in this manner has been raised from the assembling box, it is moved away from the apparatus by means of an arm 6| driven from the shaft 21.

The machine is driven by a crank handle or from the driving wheel 62 of a motor which wheel is connected, by means of a cord 63, to a cord pulley 64 on the shaft 21.

One of the advantages attained by the present invention is that the cardboard strips with incisions can be manufactured in paper factories or similar places, and then be shipped to eggpackers who assemble the egg boxes by means of the machine shown in Figs. 3 and 4. The transport and packing of the coiled cardboard strips is especially cheap, partly because no superfluous paper material is shipped that subsequently has to be cut away, and partly because the coiled cardboard strip merely requires a paper wrapper in order to be protected. The egg-packers do not require the stamping tools used for cutting the strips, and are not encumbered by the refuse resulting from the stampings.

The apparatus described may be used in other constructions than the one shown in the drawi I claim:

In an apparatus for folding cardboard boxes and the like made of a V-bent cardboard strip in which the longitudinal side walls and transverse walls are stamped out without severing the same therefrom, an assembling box, means for introducing said V-bent strip into said assembling box, said means comprising a pair ofjguide rails for holding said longitudinal walls, and separate guide means for holding said transverse Walls, said last-mentioned guide means being actuated to line up said transverse walls in said assembling box, and said first-mentioned guide means being actuated to fold said longitudinal walls against the edges of said transverse Walls.

PETER EMIL VILHELM JACOBSEN. 

